TY - GEN
T1 - PEDOT:PSS Transparent Electrode for ITO-Free Polymer:Fullerene Bulk-Heterojunction Organic Solar Cells
AU - Wu, Ren Jie
AU - Wu, Fu Chiao
AU - Huang, Leng Yu
AU - Lin, Bo Ren
AU - Chou, Wei Yang
AU - Cheng, Horng Long
PY - 2019/7
Y1 - 2019/7
N2 - Conducting poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) films have high potential as flexible transparent conductive electrodes in various devices. In this study, two simple robust methanol-based treatment methods, namely, dipping process (DP) and solvent vapor annealing (SVA), were used to improve the electrical conductivity of PEDOT:PSS films in order to make them suitable as electrodes in organic solar cells (OSCs). Then, the characteristics of the methanol-treated PEDOT:PSS films were investigated. After the methanol treatments, the sheet resistance of the PEDOT:PSS films (ca. 100 Ω/Sq) were improved by more than 200 times, and the work function (∼5.0 eV) was nearly unchanged in both methods. Two completely different possible origins of the improved conductivity of the methanol-treated PEDOT:PSS films were addressed for DP and SVA approaches. Both methods were suitable for preparing methanol-treated PEDOT:PSS films that can be used as anodes for polymer-fullerene-based OSCs. The photovoltaic performance of the modified PEDOT:PSS-based devices was comparable to that of indium tin oxide (ITO)-based devices, thus demonstrating their practicality. The methanol-treated PEDOT:PSS films show great potential as flexible transparent conductive electrodes for ITO-free and metal-free devices.
AB - Conducting poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) films have high potential as flexible transparent conductive electrodes in various devices. In this study, two simple robust methanol-based treatment methods, namely, dipping process (DP) and solvent vapor annealing (SVA), were used to improve the electrical conductivity of PEDOT:PSS films in order to make them suitable as electrodes in organic solar cells (OSCs). Then, the characteristics of the methanol-treated PEDOT:PSS films were investigated. After the methanol treatments, the sheet resistance of the PEDOT:PSS films (ca. 100 Ω/Sq) were improved by more than 200 times, and the work function (∼5.0 eV) was nearly unchanged in both methods. Two completely different possible origins of the improved conductivity of the methanol-treated PEDOT:PSS films were addressed for DP and SVA approaches. Both methods were suitable for preparing methanol-treated PEDOT:PSS films that can be used as anodes for polymer-fullerene-based OSCs. The photovoltaic performance of the modified PEDOT:PSS-based devices was comparable to that of indium tin oxide (ITO)-based devices, thus demonstrating their practicality. The methanol-treated PEDOT:PSS films show great potential as flexible transparent conductive electrodes for ITO-free and metal-free devices.
UR - http://www.scopus.com/inward/record.url?scp=85073241978&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85073241978&partnerID=8YFLogxK
U2 - 10.23919/AM-FPD.2019.8830572
DO - 10.23919/AM-FPD.2019.8830572
M3 - Conference contribution
T3 - AM-FPD 2019 - 26th International Workshop on Active-Matrix Flatpanel Displays and Devices: TFT Technologies and FPD Materials, Proceedings
BT - AM-FPD 2019 - 26th International Workshop on Active-Matrix Flatpanel Displays and Devices
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 26th International Workshop on Active-Matrix Flatpanel Displays and Devices: TFT Technologies and FPD Materials, AM-FPD 2019
Y2 - 2 July 2019 through 5 July 2019
ER -
